The diagnosis of laryngitis is mainly made by physical examination, laboratory examination, laryngoscopy, etc. Sometimes imaging and pathologic examination are needed to identify the cause and exclude other diseases. 1. Physical examination. It can be used to make preliminary judgment of the condition. It can be assisted by tongue depressor to observe the morphology of oropharyngeal tissues, whether there is congestion, swelling, ulceration, abnormal secretion; and it can also be used to examine submandibular lymph nodes to determine whether there is enlargement, pressure and pain, and so on. 2. Laboratory examination. Including routine blood test, which can determine whether there is bacterial or viral infection through the changes in the number and proportion of white blood cells and lymphocytes; pharyngeal swab culture, antibody determination, etc., which can clarify the type of infection and sensitive medication. 3. Laryngoscopy: It can observe the condition of the mucous membrane of the pharynx and the vocal cords to determine whether there is inflammation and edema. 4. Imaging examination: including chest X-ray, CT, MRI, laryngopharyngeal CT, etc., which can determine whether there is a tumor or not and know whether there is a lesion in the respiratory system if necessary. 5. Pathological examination: mainly for suspected malignant foci, take lesion tissues under laryngoscope and carry out pathological examination for clear diagnosis. If you have laryngitis, you need to go to otolaryngology department of the hospital to get a clear diagnosis and follow the doctor’s instructions to standardize the treatment.